399
FZUS51 KBOX 241249
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
849 AM EDT FRI APR 24 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-250100-
849 AM EDT FRI APR 24 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRES WILL CONTINUE TO BUILD INTO THE SOUTHERN NEW ENGLAND
WATERS TODAY AND REMAIN IN PLACE THRU SAT. LOW PRES THEN LOOKS TO
PASS INTO THE SOUTHERN OFFSHORE WATERS ON SUN, BRINGING ENHANCED NE
WINDS AND PERHAPS SOME SHOWERS. HIGH PRES THEN REASSERTS ITSELF INTO
EARLY NEXT WEEK.
ANZ250-250100-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
849 AM EDT FRI APR 24 2026
TODAY
NW WINDS 5 TO 10 KT, BECOMING S THIS AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND NW 1 FOOT AT
3 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING NE AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND NW 1 FOOT AT
3 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NW 3 FT
AT 4 SECONDS AND NE 2 FT AT 4 SECONDS.
SAT NIGHT
S WINDS AROUND 5 KT, BECOMING W AFTER MIDNIGHT. SEAS
2 TO 3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS AND E 3 FT AT
13 SECONDS.
SUN AND SUN NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: NW 2 FT AT 2 SECONDS AND E 2 FT AT 10 SECONDS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: NE 2 FT AT 3 SECONDS AND SE 2 FT AT 6 SECONDS. A CHANCE
OF SHOWERS.
TUE
NE WINDS AROUND 10 KT. SEAS 4 TO 5 FT.
TUE NIGHT
E WINDS AROUND 10 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-250100-
MASSACHUSETTS BAY AND IPSWICH BAY-
849 AM EDT FRI APR 24 2026
TODAY
N WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND NW 1 FOOT AT
3 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 6 SECONDS AND NW 1 FOOT AT
3 SECONDS.
SAT
NE WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND E 2 FT AT
7 SECONDS.
SAT NIGHT
S WINDS AROUND 5 KT, BECOMING W AROUND 5 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND
E 2 FT AT 14 SECONDS.
SUN AND SUN NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: N 2 FT AT 2 SECONDS AND S 2 FT AT 7 SECONDS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SE 2 FT AT
6 SECONDS.
TUE AND TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. A
CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-250100-
CAPE COD BAY-
849 AM EDT FRI APR 24 2026
TODAY
N WINDS 5 TO 10 KT, BECOMING NE THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND N 1 FOOT AT
4 SECONDS.
TONIGHT
E WINDS AROUND 5 KT, BECOMING NE AFTER MIDNIGHT. SEAS
AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND N 1 FOOT AT 5 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT
IN THE AFTERNOON. WAVE DETAIL: N 1 FOOT AT 3 SECONDS AND N 1 FOOT
AT 4 SECONDS, BECOMING N 1 FOOT AT 3 SECONDS AND NE 1 FOOT AT
3 SECONDS.
SAT NIGHT
SE WINDS AROUND 5 KT. SEAS AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: N 1 FOOT AT 4 SECONDS
AND SE 1 FOOT AT 6 SECONDS, BECOMING N 1 FOOT AT 4 SECONDS AND S
1 FOOT AT 5 SECONDS.
SUN
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL: N
1 FOOT AT 4 SECONDS AND S 1 FOOT AT 6 SECONDS.
SUN NIGHT
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: N 1 FOOT AT 2 SECONDS AND S 1 FOOT AT 7 SECONDS. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
MON THROUGH TUE NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-250100-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
849 AM EDT FRI APR 24 2026
TODAY
N WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND
SE 2 FT AT 7 SECONDS.
TONIGHT
N WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
2 FT AT 5 SECONDS AND SE 2 FT AT 7 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 7 SECONDS AND E 2 FT AT 15 SECONDS.
SAT NIGHT
E WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 14 SECONDS AND N 2 FT AT 4 SECONDS.
SUN AND SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 12 SECONDS AND NW 1 FOOT
AT 3 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
5 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SE 2 FT AT 6 SECONDS.
A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
4 TO 6 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-250100-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
849 AM EDT FRI APR 24 2026
TODAY
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 3 SECONDS AND E
2 FT AT 7 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 6 SECONDS AND N 1 FOOT AT
3 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT
AT 6 SECONDS AND SE 2 FT AT 15 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
3 FT AT 10 SECONDS AND E 3 FT AT 15 SECONDS.
SUN AND SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: E 3 FT AT 12 SECONDS AND NE 2 FT AT 3 SECONDS. A CHANCE
OF SHOWERS.
MON AND MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND NW 2 FT AT
4 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-250100-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
849 AM EDT FRI APR 24 2026
TODAY
E WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND NW 1 FOOT AT
3 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
1 FOOT AT 2 SECONDS AND NE 1 FOOT AT 3 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
1 FOOT AT 3 SECONDS AND W 1 FOOT AT 4 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: S
2 FT AT 6 SECONDS AND E 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
SUN AND SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: E 4 FT AT 9 SECONDS AND E 3 FT AT 4 SECONDS. A CHANCE OF
SHOWERS.
MON AND MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 5 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS AND N 1 FOOT AT
3 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
5 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-250100-
NANTUCKET SOUND-
849 AM EDT FRI APR 24 2026
TODAY
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: N 1 FOOT AT 3 SECONDS
AND E 1 FOOT AT 6 SECONDS.
TONIGHT
SE WINDS AROUND 5 KT, BECOMING NE AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: NW 1 FOOT AT 3 SECONDS AND NE 1 FOOT
AT 3 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NE
1 FOOT AT 2 SECONDS AND NW 1 FOOT AT 5 SECONDS.
SAT NIGHT
E WINDS AROUND 5 KT. SEAS AROUND 2 FT IN THE
EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 3 SECONDS
AND NW 1 FOOT AT 4 SECONDS, BECOMING E 1 FOOT AT 3 SECONDS AND S
1 FOOT AT 6 SECONDS.
SUN AND SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 2 FT AT 11 SECONDS AND E 1 FOOT AT 4 SECONDS. A CHANCE
OF SHOWERS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND N 2 FT AT
4 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-250100-
VINEYARD SOUND-
849 AM EDT FRI APR 24 2026
TODAY
NE WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND N 1 FOOT AT
3 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 2 SECONDS AND NW 1 FOOT
AT 4 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL: NE
1 FOOT AT 2 SECONDS AND SW 1 FOOT AT 6 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: E 1 FOOT AT 2 SECONDS AND NW 1 FOOT AT 4 SECONDS.
SUN AND SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 2 FT AT 12 SECONDS AND NE 1 FOOT AT 3 SECONDS. A CHANCE
OF SHOWERS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND
2 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS AROUND 2 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-250100-
BUZZARDS BAY-
849 AM EDT FRI APR 24 2026
TODAY
NE WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. SEAS
AROUND 2 FT THIS MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: N
1 FOOT AT 2 SECONDS AND N 1 FOOT AT 3 SECONDS, BECOMING N 1 FOOT
AT 3 SECONDS AND SW 1 FOOT AT 6 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 2 SECONDS AND SE 1 FOOT
AT 5 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL: NE
1 FOOT AT 2 SECONDS AND NW 1 FOOT AT 4 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. SEAS 1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 2 SECONDS
AND NW 1 FOOT AT 4 SECONDS.
SUN AND SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 2 FT AT 12 SECONDS AND NE 1 FOOT AT 3 SECONDS. A CHANCE
OF SHOWERS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 2 FT AT
6 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-250100-
RHODE ISLAND SOUND-
849 AM EDT FRI APR 24 2026
TODAY
E WINDS 5 TO 10 KT, BECOMING S THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: S 2 FT AT 7 SECONDS AND N 1 FOOT AT
2 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND NE 1 FOOT AT
2 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
1 FOOT AT 3 SECONDS AND W 1 FOOT AT 4 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT IN THE EVENING,
THEN 1 FOOT OR LESS. WAVE DETAIL: E 1 FOOT AT 3 SECONDS AND W
1 FOOT AT 4 SECONDS, BECOMING E 1 FOOT AT 3 SECONDS AND NW 1 FOOT
AT 4 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN AND SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 9 SECONDS AND E 2 FT AT
3 SECONDS. A CHANCE OF SHOWERS.
MON AND MON NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: NE 2 FT AT 3 SECONDS AND NW 2 FT AT 4 SECONDS. A CHANCE
OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-250100-
BLOCK ISLAND SOUND-
849 AM EDT FRI APR 24 2026
TODAY
E WINDS 5 TO 10 KT, BECOMING S THIS AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 7 SECONDS AND N 1 FOOT AT
2 SECONDS.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT
3 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS, THEN AROUND 2 FT
IN THE AFTERNOON. WAVE DETAIL: E 1 FOOT AT 3 SECONDS AND SW
1 FOOT AT 4 SECONDS, BECOMING E 1 FOOT AT 3 SECONDS AND W 1 FOOT
AT 4 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE OF RAIN
IN THE EVENING, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN AND SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS AND N 2 FT AT
7 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: E 2 FT AT 5 SECONDS AND SE 1 FOOT AT
12 SECONDS. A CHANCE OF SHOWERS.
MON NIGHT AND TUE
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT.
TUE NIGHT
E WINDS AROUND 10 KT. SEAS 2 TO 4 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-250100-
BOSTON HARBOR-
849 AM EDT FRI APR 24 2026
TODAY
N WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. WAVES
1 FOOT OR LESS.
TONIGHT
E WINDS 5 TO 10 KT, BECOMING NE AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
SAT
NE WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
SUN AND SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
MON AND MON NIGHT
NE WINDS 10 TO 15 KT. WAVES 2 TO 3 FT.
TUE AND TUE NIGHT
E WINDS 10 TO 15 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-250100-
NARRAGANSETT BAY-
849 AM EDT FRI APR 24 2026
TODAY
NE WINDS 5 TO 10 KT, BECOMING SE THIS AFTERNOON. WAVES
AROUND 2 FT.
TONIGHT
S WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT. WAVES
1 FOOT OR LESS.
SAT
NE WINDS 5 TO 10 KT, BECOMING E IN THE AFTERNOON. WAVES
1 FOOT OR LESS.
SAT NIGHT
SE WINDS 5 TO 10 KT, BECOMING E AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN AND SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
MON THROUGH TUE NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-250100-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
849 AM EDT FRI APR 24 2026
TODAY
NW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE
3 FT AT 5 SECONDS AND NW 2 FT AT 4 SECONDS.
TONIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N
2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT
4 SECONDS AND E 2 FT AT 9 SECONDS.
SAT NIGHT
W WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 10 SECONDS AND E 3 FT AT 14 SECONDS.
SUN AND SUN NIGHT
NE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: E 2 FT AT 10 SECONDS AND E 2 FT AT 13 SECONDS.
MON
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: NW 2 FT AT 2 SECONDS AND NE 2 FT AT 3 SECONDS.
A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
3 TO 5 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
5 FT.
TUE NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
5 TO 6 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-250100-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
849 AM EDT FRI APR 24 2026
TODAY
N WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: NE 3 FT AT 7 SECONDS AND
NW 2 FT AT 4 SECONDS.
TONIGHT
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 6 SECONDS AND S 2 FT AT 7 SECONDS.
SAT
N WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: N 2 FT AT
4 SECONDS AND E 2 FT AT 10 SECONDS.
SAT NIGHT
N WINDS AROUND 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 14 SECONDS AND N 2 FT AT 4 SECONDS.
SUN AND SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT AT 13 SECONDS AND N 2 FT AT
4 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.
A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
6 TO 7 FT. A CHANCE OF SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-250100-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
849 AM EDT FRI APR 24 2026
TODAY
NE WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 5 SECONDS AND
SW 2 FT AT 7 SECONDS.
TONIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE
2 FT AT 7 SECONDS AND NW 1 FOOT AT 3 SECONDS.
SAT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 15 SECONDS AND NE 2 FT AT 6 SECONDS.
SAT NIGHT
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 14 SECONDS AND E 2 FT AT 10 SECONDS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
SUN AND SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND E 3 FT AT
10 SECONDS. A CHANCE OF SHOWERS.
MON
NE WINDS AROUND 20 KT WITH GUSTS UP TO 25 KT. SEAS 4 TO
6 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND SE 3 FT AT 6 SECONDS.
A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
5 TO 7 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 6 TO
7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-250100-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
849 AM EDT FRI APR 24 2026
TODAY
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT
AT 4 SECONDS AND E 2 FT AT 7 SECONDS.
TONIGHT
SE WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: NW
1 FOOT AT 3 SECONDS AND NE 1 FOOT AT 3 SECONDS.
SAT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT AT
3 SECONDS AND E 2 FT AT 7 SECONDS.
SAT NIGHT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: E 3 FT AT 14 SECONDS AND
NE 2 FT AT 4 SECONDS. A CHANCE OF RAIN IN THE EVENING, THEN A
CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN AND SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND E 3 FT AT
10 SECONDS. A CHANCE OF SHOWERS.
MON AND MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 5 TO 6 FT. WAVE DETAIL: E 3 FT AT 5 SECONDS AND E 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
TUE
NE WINDS AROUND 15 KT WITH GUSTS UP TO 20 KT. SEAS 5 TO
6 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT. A CHANCE OF
SHOWERS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page